fogfrogblog wrote:I would like to use this program to teach and to be able to use arrows and highlights and freely move pieces around. Is that possible or are there any future plan on this in this site?

You want this site's 'coaching' mode, available to VIP members. Both you as a VIP and a friend (who need not be a VIP member) arrive here via http://www.chesscube.com/play/lessons/, you'll see a link to "start lesson" on their list of links and you can use arrows, etc. Download the coaching manual from http://www.chesscube.com/vip( link's near bottom of page on left)...